@mdbs99 links to Indy demos are available at http://www.indyproject.org/Sockets/Demos/index.EN.aspx, but they are quite outdated, so they might need some tweaking to recompile. But asside from UI-related code, the actual Indy code should work the same in Delphi and FPC/Lazarus alike

@mdbs99 I don't, actually. And even if I did, I can't provide Lazarus examples, as I don't have FPC/Lazarus. And I don't have access to the demos linked on Indy's website, so I can't update them with non-binary DFMs. All I can say is search around for demos, I assure you the info is out there. For instance, https://stackoverflow.com/a/51736944/65863 explains how to configure TIdPOP3 to connect to GMail. Once you are actually connected, not much has changed in POP3 over the years, so old demos should suffice.

All right - thanks again - even it was in 2012, seems that they are using Indy 10

@rlebeau sorry bother you with questions that I can search on the Internet - it's because there are some issues among libs that works in Delphi and Lazarus and I'm trying to cut corners cause my deadline - thank you